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One-Winged Angel" (片翼の天使, Katayoku no Tenshi?, lit. "an angel with wings on one side") is a Latin choral track, composed by Nobuo Uematsu and produced by Nobuo Uematsu and Minoru Akao, which is featured in Final Fantasy VII. It is played during the battle with Safer Sephiroth. The title "One-Winged Angel" references the single large wing that is part of Sephiroth's body in his final form.
The lyrics were taken from the same medieval poetry featured in Carl Orff's Carmina Burana. The lyrics can be found in the songs "Estuans interius", "O Fortuna" ("Sors immanis..."), "Veni, veni, venias" and "Ave formosissima" ("Gloriosa" and "Generosa"). Although a vocal track, "Approaching Premonition," had already been written as early as in 1994 and appeared in the album Final Fantasy VI: Special Tracks, "One-Winged Angel" marked the first time in a Final Fantasy video game that a musical track featuring digitized voices appeared (other than non-lyrical "choir aah" sounds). Among Final Fantasy fans, it is one of the most well known pieces in a game to date.